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[zion] Migrate process syscalls to new format.

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This commit is contained in:
Drew Galbraith 2023-06-20 14:01:43 -07:00
parent 76107b7db7
commit c6dd0bbb0f
9 changed files with 108 additions and 74 deletions
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39
zion/syscall/syscall.cpp
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@ -13,6 +13,7 @@
#include "object/process.h"
#include "scheduler/process_manager.h"
#include "scheduler/scheduler.h"
#include "syscall/process.h"
#include "usr/zcall_internal.h"
#define RET_IF_NULL(expr) \
@ -65,39 +66,6 @@ z_err_t ValidateCap(const RefPtr<Capability>& cap, uint64_t permissions) {
return Z_OK;
}
z_err_t ProcessExit(ZProcessExitReq* req) {
auto curr_thread = gScheduler->CurrentThread();
dbgln("Exit code: %x", req->code);
// FIXME: kill process here.
curr_thread->Exit();
panic("Returned from thread exit");
return Z_ERR_UNIMPLEMENTED;
}
z_err_t ProcessSpawn(ZProcessSpawnReq* req, ZProcessSpawnResp* resp) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->proc_cap);
RET_ERR(ValidateCap(cap, ZC_PROC_SPAWN_PROC));
RefPtr<Process> proc = Process::Create();
gProcMan->InsertProcess(proc);
resp->proc_cap = curr_proc.AddNewCapability(
proc, ZC_PROC_SPAWN_PROC | ZC_PROC_SPAWN_THREAD | ZC_WRITE);
resp->vmas_cap = curr_proc.AddNewCapability(proc->vmas(), ZC_WRITE);
if (req->bootstrap_cap != 0) {
auto cap = curr_proc.ReleaseCapability(req->bootstrap_cap);
if (!cap) {
return Z_ERR_CAP_NOT_FOUND;
}
// FIXME: Check permissions.
resp->bootstrap_cap = proc->AddExistingCapability(cap);
}
return Z_OK;
}
z_err_t ThreadCreate(ZThreadCreateReq* req) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->proc_cap);
@ -277,11 +245,10 @@ z_err_t CapDuplicate(ZCapDuplicateReq* req, ZCapDuplicateResp* resp) {
extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req, void* resp) {
RefPtr<Thread> thread = gScheduler->CurrentThread();
switch (call_id) {
// syscall/process.h
CASE(ProcessExit);
CASE(ProcessSpawn);
CASE(ThreadCreate);
case Z_PROCESS_SPAWN:
return ProcessSpawn(reinterpret_cast<ZProcessSpawnReq*>(req),
reinterpret_cast<ZProcessSpawnResp*>(resp));
case Z_THREAD_START:
return ThreadStart(reinterpret_cast<ZThreadStartReq*>(req));
case Z_THREAD_EXIT: